package com.itheima.d1_map_impl;

import java.util.LinkedHashMap;

/**
 * 目标：掌握LinkedHashMap的底层原理。
 */
public class Test2LinkedHashMap {
    public static void main(String[] args) {
        LinkedHashMap<String,String> map = new LinkedHashMap<>();
        map.put("D","");
        map.put("B","");
        map.put("A","");
        map.put("A","");
        map.put("C","");

        System.out.println(map);
    }
}
